KR100818294B1 - System and method for processing statistic information for MPLS tunnel - Google Patents

Abstract

The present invention relates to a system and method for processing statistical information on an MPLS tunnel using MPLS in an MPLS network system.

The system for processing statistical information of MPLS tunnels for each node in the MPLS network according to the present invention comprises: a statistical information database for storing statistical information collected for the MPLS tunnels between the nodes; A statistical information collecting unit for collecting statistical information on the MPLS tunnel from the input / output packet throughput between the nodes using MPLS, and storing the collected statistical information in the statistical information database; A statistical information processing unit for calculating a statistical value of the MPLS tunnel according to throughput of input / output packets between nodes from the collected statistical information; And a central management server configured to include, wherein the central management server may further include a statistical information transmission unit for providing a subscriber or a manager with statistical values in the MPLS tunnels calculated by the statistical information processing unit. .

MPLS, MPLS Tunnel, Statistics, Router, Central Management Server

Description

System and method for processing statistic information for MPLS tunnel}

1 is a block diagram of an MPLS tunnel statistics processing system in an MPLS network system according to the present invention.

2 is a block diagram of a central management server according to an embodiment of the present invention.

3 is a flowchart illustrating a process of collecting statistical information of an MPLS tunnel according to the present invention.

4 is a flowchart illustrating a process of processing statistical information of an MPLS tunnel according to the present invention.

 Explanation of symbols on the main parts of the drawings

100: Central Management Server 110: System Maintenance Department

120: topology collector 130: MPLS path processing unit

140: statistical information collecting unit 150: statistical information processing unit

160: statistical information transmission unit 170: statistical information database

180: SNMP processing unit 190: network interface unit

200: user interface unit 200: subscriber end node (CE)

300: service end node (PE) 400: router

The present invention relates to the processing of statistical information of MPLS tunnels (MPLS), and more particularly, to a system and method for processing statistical information on an MPLS tunnel using MPLS in an MPLS network system. It is about.

In general, the MPLS network has a function of delivering Layer 3 (hereinafter, referred to as 'L3') packet by an IP (Internet Protocol) header used in a conventional LAN / WAN (Local Area Network / Wide Area Network). As an improvement, it is proposed network to transmit L3 packet more efficiently and quickly by using new short length header called MPLS header called label stack.

The connection structure of the MPLS network is composed of an end system and a label switching router (LSR) that perform existing router functions. The LSR is located at an edge of an existing network according to its function. It can be divided into a Label Edge Router (LER) and a Label Switching Router (LSR) located in a core of a corresponding MPLS network. At this time, the MPLS control protocol stack for supporting the MPLS function has a structure including a label distribution protocol (LDP) layer for transmitting and receiving label values between the corresponding LSR, for transmitting the L3 packet by the corresponding LDP layer in the MPLS method An MPLS tunnel is established, which is called a label switched path (LSP).

On the other hand, the MPLS data protocol stack for configuring the MPLS network has a structure including the protocol and the MPLS layer included in the existing router inside each LSR, where each LER is an entrance LER and an exit LER according to the flow of packets. In order to transmit L3 packets in MPLS, the inlet LER's MPLS layer attaches a new label stack to the LLS packet transmitted from the end system and transmits it to the MPLS network, which is then transferred from the MPLS layer of the central LSR located inside the MPLS network. By exchanging label values, the corresponding L3 packets are sent to the exit LER at high speed. The MPLS layer of the exit LER removes the label stack attached to the L3 packet and transmits the label stack to the IP layer of the end system.

The MPLS network is used not only when creating an optimal tunnel using IP routing but also when providing a service of a two-layer virtual private network (VPN) or a three-layer virtual private network and passing through multiple LERs. By forming an MPLS tunnel and forming a private network between subscribers by encapsulating two-layer information inside, it is possible to manage the MPLS network that provides not only excellent information security for important data but also provides private network services. On the provider side, it has the advantage of fast management and maintenance. In addition, subscribers of the virtual private network service need to continuously monitor information such as current usage and billing.

However, information on the MPLS tunnel of the current MPLS network shows statistical information such as input packet throughput, output packet throughput, and packet loss according to the bandwidth usage for each network transmission device (router or node) belonging to the MPLS tunnel through the user interface. I am giving it.

The statistical information for each network transmission device may not only be used as management information from a service provider side, but also may not be provided as additional information to subscribers, and since the simple statistical information is provided to the subscribers, the provider and subscriber may receive errors or service delays. If the same problem occurs, it is not possible to quickly identify the problem point of the MPLS network, there is a problem that the quality of service is degraded for a lot of time required for recovery / maintenance.

The present invention has been proposed in order to solve the above-mentioned conventional problems. In the MPLS network system, an MPLS capable of monitoring statistical information on an MPLS tunnel between nodes and clearly providing the corresponding statistical information to an administrator or subscriber can be provided. It is an object of the present invention to provide a system and method for processing statistical information of a used MPLS tunnel.

In the MPLS tunnel statistical processing system according to the present invention for achieving the above object, in the MPLS tunnel statistical information processing system for each node in the MPLS network,

A statistical information database storing statistical information collected for the MPLS tunnel between each node; A statistical information collecting unit for collecting statistical information on the MPLS tunnel from the input / output packet throughput between the nodes using MPLS, and storing the collected statistical information in the statistical information database; A statistical information processing unit for calculating a statistical value of the MPLS tunnel according to throughput of input / output packets between nodes from the collected statistical information; Characterized in that it comprises a central management server configured to include.

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In one embodiment of the present invention, the central management server may further include a statistical information transmission unit for providing a subscriber or manager with a statistical value in the MPLS tunnel between each node calculated by the statistical information processing unit.

In one embodiment of the present invention, the central management server, a user interface for providing an interface with a subscriber or manager; A topology collector configured to collect topology information of the MPLS tunnels between the nodes; It may further include an MPLS path processing unit for providing maintenance of the MPLS tunnel between the nodes.

In an embodiment of the present disclosure, the central management server may further include an SNMP processing unit configured to perform SNMP processing so that the statistical information collecting unit collects statistical information of the MPLS tunnel between the nodes.

In an embodiment of the present disclosure, the statistical information management system may further include at least one first node and a second node forming at least one MPLS tunnel in the MPLS network. In this case, each of the first node and the second node may be one of a service end node and a router node.

In one embodiment of the present invention, it is preferable that the central management server collects statistical information for each node according to SNMP.

In addition, to achieve the above object, the present invention, in the central management server in the MPLS network system including at least one first node and a second node forming at least one MPLS tunnel, I / O packet for each node A statistical information collecting unit for collecting statistical information on the MPLS tunnel from throughput; A statistical information database for storing the collected statistical information; A statistical information processing unit which calculates a statistical value for the MPLS tunnel according to the input / output packet throughput between the nodes using the collected statistical information; It provides a central management server comprising a.

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According to an embodiment of the present disclosure, the central management server may include: an SNMP processing unit configured to perform SNMP processing so that the statistical information collecting unit collects statistical information of the MPLS tunnel between the nodes; A user interface unit providing a subscriber or an administrator with graphical values or numerical values of the MPLS tunnels calculated by the statistical information processing unit; A topology collector configured to collect topology information of each MPLS tunnel; An MPLS path processing unit for maintaining and maintaining each of the MPLS tunnels; It may further include.

In addition, the present invention for achieving the above object, in the statistical information processing method of the MPLS network system comprising at least one first node and a second node forming at least one MPLS tunnel,

A first step of collecting statistical information of the MPLS tunnel from the input / output packet throughput between the nodes; Calculating a statistical value for the MPLS tunnel according to the input / output packet throughput between the nodes using the statistical information; Providing a statistical value of the MPLS tunnel between each node to a subscriber or an administrator; It includes.

In one embodiment of the present invention, the first node or the second node may be any one of a service end node or a router node.

In an embodiment of the present disclosure, the first step may include transmitting an information request message based on SNMP to each node; And collecting statistical information included in the information response message received from each node.

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In one embodiment of the present invention, the third step is preferably to provide the subscriber or the manager in the graphic or numerical value of the MPLS tunnel between the nodes.

In one embodiment of the present invention, the method for processing statistical information of the MPLS tunnel, the method comprising: collecting topology information of each MPLS tunnel; And maintaining / maintaining the MPLS tunnel between the nodes so that the MPLS packet is transmitted.

In the following, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, in the case where it is determined that detailed descriptions of related well-known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted so as not to obscure the subject matter of the present invention. will be.

1 is a configuration diagram of an MPLS tunnel statistics information processing system in an MPLS network system according to the present invention.

Referring to FIG. 1, in the MPLS network system to which the present invention is applied, a MPLS network and a plurality of subscriber networks are connected, and each subscriber network has a subscriber end node (CE) 200 in an area connected to the MPLS network. The MPLS network includes a service end node (PE) 300 in an area connected with the subscriber network. In addition, the MPLS network includes a plurality of Label Switching Routers (LSRs) 400, and each service end node 300 and a router (hereinafter referred to as a 'router node') 400 of the MPLS network are centrally located. It is connected to the management server 100.

Each service end node 300 and a router node 400 of the MPLS network establish an MPLS tunnel for providing a service, and exchange packets within the MPLS network according to the MPLS function.

The central management server 100 collects topology information for each service end node 300 and each router node 400 of the MPLS network, provides an MPLS tunnel, and collects statistical information of MPLS tunnels between nodes. After the statistics processing, the statistical information for each MPLS tunnel between nodes is provided to a service provider or subscribers.

2 is a block diagram of a central management server according to a preferred embodiment of the present invention.

Referring to FIG. 2, the central management server 100 of the present invention includes a system maintenance unit 110, a topology collector 120, an MPLS path processor 130, a statistical information collector 140, and a statistical information processor ( 150, a statistical information transmitting unit 160, a statistical information database 170, a simple network management protocol (SNMP) processing unit 180, a network interface unit 190, and a user interface unit 200.

The system maintenance unit 110 processes an OAM (Operation, Administration and Maintenance) function and a FACPS (Fault, Account, Configuration, Performance and Security) function. OAM functions include network fault indication function, performance information processing function and diagnostic function. FACPS features include event collection, error correlation, resource status display, current alert display, automatically find target, remote management, data collection, resource configuration, performance calculation and real-time graphical display Functions and the like. As such, the system maintenance unit 110 processes system management / maintenance / maintenance functions for each service end node 300 and the router node 400 of the MPLS network.

The network interface 190 interfaces the terminal of the MPLS network or service provider and subscribers with the central management server 100 to be connected, and the central management server 100, each service end node 300 and the router node 400. Exchange messages between In other words, the network interface unit 190 allows a remote subscriber or administrator to access the central management server 100 to check the status information of the MPLS network.

The SNMP processor 180 collects state information on each service end node 300 and the router node 400 according to SNMP. That is, the SNMP processing unit 180 may correspond to an SNMP manager, each service end node 300 and a router node 400 may correspond to an SNMP agent, and the SNMP processing unit 180 may be configured as an SNMP manager. An information request message is transmitted to the service end node 300 and the router node 400, and each service end node 300 and the router node 400 receive an information response message including status information when the information request message is received. Send to the SNMP processing unit 180. The SNMP processor 160 collects state information of each node 300 or 400 according to a request of the statistical information collecting unit 140 and the topology collecting unit 12. In addition, the SNMP processing unit 160 may store state information about each service end node 300 and the router node 400 in a database (not shown). Furthermore, the state information collected by the SNMP processing unit 160 includes input / output packet throughput information of each service end node 300 and the router node 400, topology information of an MPLS tunnel, and location information of a corresponding node of the MPLS network. Information that can calculate statistical information such as (start node information, intermediate node information, last node information), and the like. The service end node 300 becomes a starting node or a last node, and the router node 400 becomes an intermediate node.

The topology collector 120 generates topology information of each node located in the MPLS network according to the state information collected from the SNMP processor 160 and forms a plurality of MPLS tunnels based on the generated topology information. do.

The MPLS path processing unit 130 maintains / maintains a plurality of MPLS tunnels formed on the MPLS network. That is, the MPLS path processing unit 130 provides a path formed by the MPLS tunnel, and if an error occurs in the corresponding path, the MPLS path processing unit 130 processes the repair thereof.

The statistical information collecting unit 140 periodically operates according to a timer (not shown) of the system maintenance unit 110 or its own timer, and searches for the MPLS tunnel according to the topology information. The statistical information collecting unit 140 obtains state information about the service end node 300 and the router node 400 included in the MPLS tunnel through the SNMP processing unit 160 or from a database. In addition, the statistical information collecting unit 140 determines the location information of each node (service end node 300 or router node 400) on the first MPLS tunnel. In addition, if the position of the node is the start node 300, the statistical information collecting unit 140 collects the input (Ingress) packet throughput, if the last node 300, collects the output (Egress) packet throughput, If it is node 400 (Transit), it collects both input packet throughput and output packet throughput. In this case, the statistical information collecting unit 140 may query the state information of each node through the SNMP processing unit 160. The statistical information collecting unit 140 checks whether the current MPLS tunnel is the last tunnel and collects statistical information on all MPLS tunnels formed on the MPLS network. The statistics collector 140 collects statistical information for each node for each MPLS tunnel. The statistical information of the MPLS tunnel thus collected is stored in the statistical information database 160.

The statistical information processing unit 150 operates when the statistical information collecting unit 140 completes collecting the statistical information according to the operation of a timer (not shown) of the system maintenance unit 110 or its own timer. If the node that reads the statistics information on the nodes located in one of the MPLS tunnel, and the node that reads the statistical information is the start node 300, and calculates the statistics value for the input packet throughput, if the last node 300 Compute statistical values for output packet throughput. In addition, if the statistical information processing unit 150 is the last node 300, the statistical information processing unit 150 calculates the total drop packet amount (DROP Packet amount) or the total packet drop rate (Drop Packet), etc. of the corresponding MPLS tunnel, and the intermediate node (Transit Node). Calculate the statistical value on the input side and the statistical value on the output side. In addition, the statistical information processor 150 may calculate statistical values for nodes on all MPLS tunnels and store the calculated statistical values in a database.

The statistical information processor 160 may calculate a statistical value for one MPLS tunnel using Equations 1 to 4 below.

The drop packet amount D _Nj at each node (that is, j ^th node) is calculated using Equation 1 below.

[Equation 1]

D _Nj = Di _{Nj +} Do _{Nj + ΔD Nj-Nj-1}

Here, Di _Nj is the input packet drop amount (Node j ^th input Drop Packets) in the j ^th node, Do _Nj is the output amount of packets dropped (Node j ^th output Drop Packets) on the j ^th node, △ D _{Nj- Nj-1} is a drop packet amount to be generated when the j ^th node is transmitted.

That is, the drop packet amount Di _Nj on the input side and the drop packet amount Do _Nj to be generated on the output side are calculated, and the drop packet amount _{ΔD Nj-Nj-1} to be generated upon transmission is further calculated. Then, by adding all of them, the amount of packets dropped at any node, that is, j ^th node, is calculated.

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In this case, the input drop packet amount is a value calculated by calculating all of the input packet amounts generated due to an incomplete packet or an error generated during transmission.

The total drop packet amount T _D that can be generated in one MPLS tunnel is calculated using Equation 2 below.

[Equation 2]

T _D = Do _No + Di _Nn + _{ΔD Nn} +

는 중계 노드(j^th 노드)에서 전송 시 발생이 될 드랍 패킷 량을 모두 합친 값이다. Here, Do _No is the output drops packet traffic on the start node, Di _Nn is the input packet drop amount at the end nodes, △ D _Nn is the drop amount of packets to be generated during the transmission of the last node,

Is the sum of the amount of drop packets to be generated during transmission from the relay node (j ^th node).

This is because the statistics processing unit 150 calculates the total amount of drop packets that can be generated in one MPLS tunnel. For this purpose, the start node 300 of the corresponding MPLS tunnel calculates the amount of output drop packets for input on the MPLS tunnel. The last node 300 calculates the amount of drop packets generated when a packet is input, and the transit node sums the amount of drop packets generated between the previous node and the transmitted drop packet amount and the input / output at its own node. do.

The total service throughput T _S for one MPLS tunnel is calculated using Equation 3 below.

[Equation 3]
T _S = (Ii _N0 -T _D ) / BW _sub

Where Ii _N0 is the input packet amount of the starting node and T _D is The total drop packet amount, and BW _sub is the subscriber's bandwidth.
That is, the total service throughput (T _S ) for one MPLS tunnel is calculated by dividing the remaining packet amount dropped from the input packet of the start node by the serviced bandwidth.

The total packet drop rate for one MPLS tunnel is calculated using Equation 4 below.

[Equation 4]
DropRate = T _D / BW _sub

Where T _D is The total drop packet amount, and BW _sub is the subscriber's bandwidth.
That is, the total packet drop rate for one MPLS tunnel is calculated by dividing the total drop packet amount (T _D ) by the subscriber's bandwidth (BW _sub ).

As such, the statistical information processor 150 may calculate statistical values on MPLS tunnels between nodes, and may calculate input / output packet processing amounts and drop packet amounts for each node.

The user interface 200 may provide statistical information collected to a subscriber or an administrator who is remotely connected through the network interface 190. The user interface 200 may provide input / output packet throughput, drop packet quantity, and the like on the MPLS tunnel between nodes in graphic form or numerical value. Problems such as bottlenecks can be identified quickly.

3 is a flowchart illustrating a process of collecting statistical information of an MPLS tunnel according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the central management server 100 searches for a first MPLS tunnel among a plurality of MPLS tunnels formed on an MPLS network (S100), and collects state information about all nodes located on the first MPLS tunnel. (S110). In addition, if the node corresponding to the state information collected through step S110 is the start node 300 of the first MPLS tunnel (S120), the central management server 100 collects input tunnel information (S130). On the other hand, if the last node 300 of the first MPLS tunnel (S140), output tunnel information is collected (S150). Meanwhile, if the node corresponding to the state information collected through step S110 is the intermediate node 400 (S160), the central management server 100 collects all input / output tunnel information (S170). In this case, the central management server 100 may inquire status information to each node according to SNMP. In the case of the intermediate node 400, the central management server 100 may collect output tunnel information after collecting input tunnel information. In this way, the central management server 100 collects the statistical information of the MPLS tunnel between each node through the step S120 to step S170, and stores it in the statistical information database 170 (S180).

The statistics information of the MPLS tunnel between each node collected by the central management server 100 calculates a drop packet amount, a total drop packet amount, a total service throughput rate, and a total packet drop rate that may occur at each node located on the MPLS tunnel. It can be statistical information that can be done.

4 is a flowchart illustrating a process of processing statistical information of an MPLS tunnel according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the central management server 100 selects a first MPLS tunnel among a plurality of MPLS tunnels (S200), and reads state information about each node located on the first MPLS tunnel from a database (FIG. S210). If the node corresponding to the read state information is the start node 300 (S220), the central management server 100 calculates a statistical value for the input tunnel (S230). The statistics for the input tunnel can be input packet throughput.

Subsequently, if the central management server 100 is the last node 300 (S240), the central management server 100 calculates a statistical value for the output tunnel (S250). The statistics for the output tunnel can be the output packet throughput.

Since the central management server 100 is the last node 300, the total management packet amount or the total packet drop rate for the first MPLS tunnel is calculated (S260). That is, the central management server 100 calculates the total drop packet amount or the total packet drop rate for the first MPLS tunnel according to the input packet amount of the start node 300 and the output packet amount of the last node 300.

On the other hand, if the central management server 100 is a Transit Node, it calculates the statistics of the input side and the output side statistics (S270), and calculates the amount of drop packets or other temporary information between the input side statistics and output side statistics (S280). In addition, the central management server 100 stores the calculated statistical value in the database (S290).

Next, the statistical value calculated by the central management server 100 is a statistical value according to the drop packet amount, the total drop packet amount, the total service throughput rate, and the total packet drop rate that may occur in each node on the first MPLS tunnel.

On the other hand, the central management server 100 checks whether the currently selected MPLS tunnel is the last tunnel (S300), and if the last tunnel, terminates the process of calculating the statistics for each node on the MPLS tunnel, the last MPLS tunnel is Otherwise, the next MPLS tunnel is selected and the above steps S200 to S290 are repeated to calculate statistical values for the node on the next MPLS tunnel. In addition, if there is a request for status information from the administrator or subscriber, the central management server 100 provides statistical values stored in the database (S310). Accordingly, the central management server 100 may provide statistical values such as input / output packet throughput and drop packet volume on the MPLS tunnel between nodes for each MPLS tunnel in graphic form or numerical value.

Therefore, the manager or subscriber can check the packet drop rate occurring in the MPLS tunnel, the inter-node I / O packet throughput, and the like, even if there is a service delay such as a bottleneck.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

As described above, according to the present invention, when providing a layer 2 MPLS tunnel-based virtual private network service or a layer 3 virtual private network service in the MPLS network system, the subscriber can provide accurate statistical information for each MPLS tunnel. Statistics for the MPLS tunnel for each subscriber can be provided to the subscriber or administrator.

Therefore, in the MPLS network system, problems such as service delay due to transmission error or bottleneck can be quickly identified and repaired, and the throughput of the packet can be confirmed at a glance.

Claims (25)

In the statistical information management system of MPLS tunnel in MPLS network, A statistical information collection unit for collecting statistical information on the MPLS tunnel between each node from input / output packet throughput of each of the at least one node forming the MPLS tunnel; A statistical information database for storing the collected statistical information; And A statistical information processor for calculating a statistical value of the MPLS tunnel according to the throughput of the input / output packets between the nodes from the collected statistical information; Statistical information management system of the MPLS tunnel comprising a central management server configured to include. delete The method of claim 1, wherein the central management server, The statistical information management system of the MPLS tunnel, characterized in that it further comprises a statistical information transmission unit for providing a subscriber or administrator with a statistical value in the MPLS tunnel between each node calculated by the statistical information processing unit. The method of claim 1, wherein the central management server, A user interface unit for interfacing with a subscriber or an administrator; A topology collector configured to collect topology information of the MPLS tunnels between the nodes; An MPLS path processing unit for providing maintenance of the MPLS tunnel between the nodes; Statistical information management system of the MPLS tunnel further comprising a. The method of claim 1, wherein the central management server, The statistical information management system of the MPLS tunnel, characterized in that it further comprises an SNMP processing unit for SNMP processing to collect the statistical information of the MPLS tunnel between each node. The method of claim 1, wherein each of the at least one node And the MPLS tunnel is formed in the MPLS network. The method of claim 6, wherein the node, Statistical information management system of the MPLS tunnel, characterized in that any one of a service end node or a router node. The method of claim 1, wherein the central management server, Statistical information management system of the MPLS tunnel, characterized in that for collecting the statistical information for each node in accordance with SNMP. The method of claim 1, wherein the statistical information processing unit, The statistical information management system of the MPLS tunnel, characterized in that the drop packet amount (D _Nj ) at each node is calculated using Equation 1 below. [Equation 1] D _Nj = Di _{Nj +} Do _{Nj + ΔD Nj-Nj-1} Di _Nj is the input drop packet amount at node j ^th , Do _Nj is the output drop packet amount at node j ^th , and _{ΔD Nj-Nj-1} is the drop packet amount to be generated when transmitting node j ^th. . The method of claim 1, wherein the statistical information processing unit, The statistical information management system of the MPLS tunnel, characterized in that to calculate the total drop packet amount (T _D ) that can be generated in the MPLS tunnel using Equation 2. [Equation 2] T _D = Do _No + Di _Nn + _{ΔD Nn} +

The Do _No is the output drops packet traffic on the start node, the Di _Nn is the input packet drop amount at the end node, the △ D _Nn is the drop amount of packets to be generated during the transmission of the last node, the

Is the sum of the amount of drop packets to be generated during transmission from the relay node (j ^th node). The method of claim 1, wherein the statistical information processing unit, The statistical information management system of the MPLS tunnel, characterized in that to calculate the total service throughput (T _S ) for the MPLS tunnel using Equation 3. [Equation 3] T _S = (Ii _N0 -T _D ) / BW _sub Ii _N0 is an input packet amount of a start node, and T _D is The total drop packet amount, and the BW _sub is the subscriber's bandwidth. The method of claim 1, wherein the statistical information processing unit, The statistical information management system of the MPLS tunnel, characterized in that to calculate the total packet drop rate (Drop Rate) for the MPLS tunnel by using Equation 4. [Equation 4] DropRate = T _D / BW _sub T _D is The total drop packet amount, and the BW _sub is the subscriber's bandwidth. In the central management server of the MPLS network system, A statistical information collection unit for collecting statistical information on the MPLS tunnel between each node from input / output packet throughput of each of the at least one node forming the MPLS tunnel; A statistical information database for storing the collected statistical information; And A statistical information processing unit which calculates a statistical value for the MPLS tunnel according to the input / output packet throughput between the nodes using the collected statistical information; Central management server of the MPLS network system comprising a. The method of claim 13, An SNMP processing unit configured to perform SNMP processing so that the statistical information collecting unit collects statistical information of the MPLS tunnel between the nodes; A user interface unit providing a subscriber or an administrator with a graphic value or a numerical value for the MPLS tunnel calculated by the statistical information processor; A topology collector configured to collect topology information of the MPLS tunnels between the nodes; And An MPLS path processing unit for providing maintenance of the MPLS tunnel between the nodes; Central management server of the MPLS network system, characterized in that it further comprises. delete In the statistical information processing method of the MPLS network system, Collecting statistical information on the MPLS tunnel between each node from input / output packet throughput of each of the at least one node forming the MPLS tunnel; Calculating a statistical value for the MPLS tunnel according to the input / output packet throughput between the nodes using the statistical information; And Providing a statistical value for the MPLS tunnel to a subscriber or an administrator; Statistical information processing method of the MPLS tunnel comprising a. The method of claim 16, wherein each of the at least one node, Method for processing statistical information of the MPLS tunnel, characterized in that any one of a service end node or a router node. The method of claim 16, wherein the first step, Transmitting an information request message according to SNMP to each node; Collecting statistical information included in an information response message received from each node; Statistical information processing method of the MPLS tunnel comprising a. delete The method of claim 16, wherein the second step, Method for processing the statistical information of the MPLS tunnel, characterized in that to calculate the drop packet amount (D _Nj ) at each node using Equation 5. [Equation 5] D _Nj = Di _{Nj +} Do _{Nj + ΔD Nj-Nj-1} Di _Nj is the input drop packet amount at node j ^th , Do _Nj is the output drop packet amount at node j ^th , and _{ΔD Nj-Nj-1} is the drop packet amount to be generated when transmitting node j ^th. . The method of claim 16, wherein the second step, Method for processing the statistical information of the MPLS tunnel, characterized in that to calculate the total drop packet amount (T _D ) that can be generated in the MPLS tunnel using Equation 6. [Equation 6] T _D = Do _No + Di _Nn + _{ΔD Nn} +

The Do _No is the output drops packet traffic on the start node, the Di _Nn is the input packet drop amount at the end node, the △ D _Nn is the drop amount of packets to be generated during the transmission of the last node, the

Is the sum of the amount of drop packets to be generated during transmission from the relay node (j ^th node). The method of claim 16, wherein the second step, The statistical information processing method of the MPLS tunnel, characterized in that to calculate the total service throughput (T _S ) for the MPLS tunnel using Equation 7. [Equation 7] T _S = (Ii _N0 -T _D ) / BW _sub Ii is an input packet amount of a start node, and T _D is The total drop packet amount, and the BW _sub is the subscriber's bandwidth. The method of claim 16, wherein the second step, Method for processing the statistical information of the MPLS tunnel, characterized in that to calculate the total packet drop rate (Drop Rate) for the MPLS tunnel using Equation 8. [Equation 8] DropRate = T _D / BW _sub T _D is The total drop packet amount, and the BW _sub is the subscriber's bandwidth. The method of claim 16, wherein the third step, The statistical information processing method of the MPLS tunnel, characterized in that the statistical value of the MPLS tunnel between the nodes provided to the subscriber or administrator in a graphic or numerical manner. The method of claim 16, Collecting topology information of the MPLS tunnel between the nodes; And Maintaining / maintaining an MPLS tunnel between each node such that an MPLS packet is transmitted; Statistical information processing method of the MPLS tunnel, further comprising.

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